Plow-fastener



(Nc Model.)

W. J. MERCER. PLOW PASTBNBR.

No. 422,028. Patented 11610.25, 1820.

f vious.

UNITED STATES PATENT CEEICE.

WILLIAM .IUDSON MERCER, OF I-IOMER, LOUISIANA.

PLowFAsTENER.

SPECIFICATION forming part of Letters Patent No. 422,028, dated February25, 1890.

lripplioation filed July 10, 1889. Serial No. 317,018, (No model.)

To all whom t may concern.-

Be it known that I, WILLIAM JUDSON MER- CER, a citizen of the UnitedStates, residing at Homer, in the parish of Claiborne and State ofLouisiana, have invented a new and useful Plowdastener, of which thefollowing is a specification.

My invention relates to improvements in plow-fasteners; and it consistsin certain novel features hereinafter described and claimed.

In the accompanying drawings, Fig'ure l is a perspectiveview of a plowprovided with myimprovements. Fig. 2 is a view showing the plow-standardand the plow-shovel in section and the fastening' device in elevation.Fig. 3 is a detail perspective view of the fastening device. Fig. is avertical sectional view showing a shovel and heel sweep attached to aplow-standard by my improved fastening device.

The plow-standard A is of the usual coustruction and has alongitudinalslot B, while the plow-shovel may-be of any desired shape or size, andis provided at its upper end with a notch C and a short distance belowsaid notch with an opening D.

Myimproved device consists of thelockingbar E and the wedge or key F.The lockingbar is substantially T-shaped, having the shank G, adapted topass through the opening D of the plow-shovel and the slot B of thestandard, and the cross-head H, adapted to rest against the front sideof the plowshovel, and provided with a lip I, adapted to engage thenotch C and enter the slot of the standard.

The shank G is provided near its end with the openings J K, passingthrough its body at right angles to each other and one slightly inadvance of the other longitudinally, and the wedge or key F is adaptedto pass through one of these openings to secure the locking. bar inposition.

The construction and arrangement of my improved device will be readilyunderstood from the foregoing description, and the advantages of thedevice are thought to be ob- The locking-bar is inserted through theplow-shovel and the standard, as shown and described, and the key isthen passed through the transverse opening J, and bears on the rear sideof the standard. The Wedge shape of the key causes it to draw the lockdingebar rearward, and thereby firmly clamp the plow-shovel to thestandard. When a heelsplate or heelsweep is used, it is slipped over therear end of the shank of the locking-bar, and the key is then insertedthrough the opening K', so as to bind against the rear side of theheel-plate and clamp the heelplate and the shovel to the standard. Thedistance between the longitudinal disposition of the slots J and K issuch as to compensate for the added thickness of the heelsweep.

The shovel is effectually prevented from rotating by reason of the shankof the lock in g-bar passing through the opening D' thered in and thelip at the upper end of the locking-bar engaging the notch in the upperedge of the shovel.

The device is very simple and can be manus factured and sold at a slightcost.

It will be observed that the standard is composed of parallel plateshaving fiat inner faces and that the lockingbar is angular in itsformation and adapted to fit snugly between the said plates. The shovelwill thus be effectually prevented from turning upward or to one sidewithout the use of additional securing means or necessitating apeculiar' construction of the standard. It will also be noticed that thelocking-bar is provided with two openings for the wedge, so that thewedge may be inserted either vertically or horizontally, as one or theother may prove most convenient and effect-ive.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

The herein-described plow-fastening device, comprising an angular'Tv-shaped locking-bar provided at one end of its head with an angularlip, and the shank of said locking-bar being provided with openings atright angles and one slightly in advance of the other, in combinationwith a wedge adapted to pass through either of said openings,substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

WILLIAM JUDSON MERCER.

Witnesses:

J. R. RAMsEY, W. F. BRIDGES. l

ICO.

